Threespot dascyllus

Threespot dascyllus
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Blenniiformes
Family: Pomacentridae
Genus: Dascyllus
Species:
D. trimaculatus
Binomial name
Dascyllus trimaculatus
(Rüppell, 1829)
Synonyms
  • Pomacentrus trimaculatus Rüppell, 1829
  • Pomacentrus nuchalis Anonymous [Bennett], 1830
  • Dascyllus unicolor Bennett, 1831
  • Dascyllus niger Bleeker, 1847
  • Sparus nigricans Gronow, 1854
  • Dascyllus axillaris J.L.B. Smith, 1935

The threespot dascyllus (Dascyllus trimaculatus), also known as the domino damsel or simply domino, is a species of damselfish from the family Pomacentridae. It is native to the Indo-Pacific from the Red Sea and East Africa, to the Pitcairn Islands, southern Japan, and Australia, and can also be found in some parts of the Philippines.[2] Its grey to black body has two lateral white spots and one between the eyes like domino hence the name; the threespot dascyllus grows up to 13 cm (5.1 in) in length. Coloration is somewhat variable; the spot on the forehead may be absent and the lateral spots very much reduced. It feeds on algae, copepods and other planktonic crustaceans.[3]

Habitat

Generally, adults are found in small groups around coral heads or large rocks. Juveniles may be found associated with large sea anemones or sheltering between the spines of diadema sea urchins or branching corals.[4] This species may be found to depths of 55 m.

Etymology

Trimaculatus, meaning "three-spotted", refers to the fish's three white spots. This accounts also for the common name "domino".[5]

  • Threespot dascyllus and anthias grouping over coral near Taba, Egypt
    Threespot dascyllus and anthias grouping over coral near Taba, Egypt
  • A pair of juvenile three-spot dascylluses with their anemone in the Maldives: A pair of black-foot anemonefish can be seen to the top.
    A pair of juvenile three-spot dascylluses with their anemone in the Maldives: A pair of black-foot anemonefish can be seen to the top.
  • Juvenile threespot dascyllus (left) and a pair of Maldives anemonefish associated with the sea anemone Heteractis magnifica
    Juvenile threespot dascyllus (left) and a pair of Maldives anemonefish associated with the sea anemone Heteractis magnifica
  • Shoals of threespot dascyllus fish at Wakatobi National Park
    Shoals of threespot dascyllus fish at Wakatobi National Park

In aquarium

During the juvenile period, they live with the sea anemone. They grow fast and can grow up to 14 cm (5.5 in) in length in a large fish tank.[6]

References

  1. ^ Allen, G.; Burt, J.; Williams, J.T.; Larson, H. (2015). "Dascyllus trimaculatus (Persian Gulf assessment)". IUCN Red List of Threatened Species. 2015: e.T188339A57215444. Retrieved 30 June 2024.
  2. ^ Froese, Rainer; Pauly, Daniel (eds.). "Dascyllus trimaculatus". FishBase. May 2007 version.
  3. ^ Allen, G.R., 1991. Damselfishes of the world. Mergus Publishers, Melle, Germany. 271 p.
  4. ^ Lieske, E. and Myers, R.F. (2004) Coral reef guide; Red Sea London, HarperCollins ISBN 0-00-715986-2
  5. ^ Siliotti, A. (2002) fishes of the red sea Verona, Geodia ISBN 88-87177-42-2
  6. ^ Youtube <<Advance Marine Aquarium>> Creatures section, Damselfish - Author:Sublanding Fish[2020-06-19]
Wikimedia Commons has media related to Dascyllus trimaculatus.
Wikispecies has information related to Dascyllus trimaculatus.


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